Nitrammite
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| Nitrammite[1] | |
| Mineralogical name | Nitrammite, Gwihabaite |
| Chemical name | Ammonium Nitrate |
| Trivial name | |
| Chemical formula | NH4NO3 |
| Other forms | |
| Crystal system | orthorhombic |
| Crystal structure | |
| Deliquescence humidity 20°C | 65% (20°C), 61.8% (25°C) |
| Solubility (g/l) at 20°C | 1787 g/l |
| Density (g/cm³) | 1.72 g/cm3 |
| Molar volume | 46.49 cm3/mol |
| Molar weight | 80.043 g/mol |
| Transparency | transparent |
| Cleavage | |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | |
| Crystal Optics | |
| Refractive Indices | nx = 1.411-1.416 ny = 1.605-1.623 nz = 1.630-1.649 |
| Birefringence | Δ = 0.219-0.233 |
| Optical Orientation | negative |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| [Robie.etal:1978]Title: Thermodynamic properties of minerals and related substances at 298.15 K and 1 bar pressure and higher temperatures Author: Robie R.A., Hemingway B.S.; Fisher J.A. 
| |
References[edit]
- ↑ http://www.mindat.org/min-7512.html seen on 29.07.2010
Literature[edit]
| [Robie.etal:1978] | Robie R.A., Hemingway B.S.; Fisher J.A. (1978): Thermodynamic properties of minerals and related substances at 298.15 K and 1 bar pressure and higher temperatures. In: U.S. Geol. Surv. Bull, 1452 () | |